Disk harrow



Dec. 14, 1926.

W. L. PAUL DISK HARRow Filed sept. 2, 1921 5 Sheets-5heet 1 inwerking" K.

Wrlxzas s? Dec. 14 1926.

W. L. PAUL DISK HARROW Filed sept. 2, 1921 s sheelsheet 2 Dec. 14 1926.

W. L, PAUL DISK HARROW Filed sept. 2. 1921l 5 sheets-.sheet s lavan/fr .i 9/

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WILLIAM L. PAUL, on BERKELEY, CALIFORNIA, Assis-noa 'ro' 'nanna a COMPANY, o

' MOLINE, ILLINOIS.,Y A consentir-amen orf ILLINOIS. v

nIsK IIARROW.

This invention relates to disk harrows and has to do with meansfor angling the disk gangs.

1t is well known that in disk harrows it isnccessary to place the gangs of disks at an angle to the forward line of draft of the harrow in order to secure the proper cutting action of the disks on the soil. kllhen the disks are in alignment with the line of advance there is` practically no action on the soil, but byk angling the disks a cutting acvtion is obtained which lisincreased as the vangle of the disks to the ,linerof advance is increased. In'operation ,itis desirable to vary this angle to suit the varying soil conditions'. A

The objects of the invention are; to provide means optionally-movable into engagement with the ground to utilize the forward movement of the harrow relativeI to the ground engaging means to automatically adjust the position of the gangs; to provide for a manual control of the automatic `means in such a harrow,l to regulate the adjustment of the gangs to any desired angle within their working limits; and Vto provide means that will hold the gangs in their ad' justed position. L

Referring to the accompanying drawings in which like numerals indicate identical parts j. y Figure lis a top plan view of a single action disk harrow, the gangs in non-working or transport position, and the angling means in neutral position.

Figure 2 is aside elevation of Figure 1.

Figure 3 is a side elevation of Figure 1, but with the disk gangs shown in angled or working position.

Figure 4 is a side elevation of lFigure 1 with the gangs in` angled position and the angling means shown in position to straighten the gangs. "1

Figure 5 is a side elevation of Figure 1 with the gangs in angled position with the angling means in the position assumed when angling the gangs and before being returned to the neutral position.'

Figure 6 is a detail view of holding the` gangs in adjusted position.-

The disk gangs are of the vusual and well known type having a series of disks indicated at 1() mounted on a shaft 10a supportthe lplate for by hearings contained andV rotatable in bearing bones11. VThe disksflO lare spaced apart on the shaft by means of the usual v spacers 11, The disk gangs are pivotally connected with vthe arms of Ya. transverse frame bar 13 yby meansof bolts 12 which extend throughslots 12in the center bearing boxes 11. Thegangs areadjustable an-V gularly relative to the' line of advance, around the bolt 12:as.a pivot, by -means hereinafter described. The usual scraper` bars 14 are supported from the bearing boxes 11.by, `means ofL-shaped larms 14.` Con-2 vnected to the transverse frame bar y13, by

rivets 15 are forwardly extending parallel frame bars -16 and 17, which are bent toward each other and secured together atIV their forward 4vends and to which is'attached by rivetsor bolts 18 a clevis plate 19, which may beconnected to a tractor 20'by any preferred means, such as a clevis 21 andra bolt 22. Itis understood the tractor 20 may be of any preferred type or make and thev draft connectionschanged to suit the tractor. Forwardly :converging Yside frame bars 23 and 24 'are attached at their-rear ends te the arms of the bar 13 by means of bolts 25 and at their forward endsv to thebars16 and '17 respectively by means of rivets 2b. The rivets 26 also hold securely to the bars 16 'andv 17 a brace 27. 'Two Vdepending straps 28 and 28a arev pivoted vat ytheir upper,

ends bymeans of bolts 29 to the parallel j portion ofthe bars `16.-and 1? respectivelyv and are bent at their lower ends so-lthey apin the centerline ofthe barrow.` On a pin f proach eachfother at apoint.approximatelyv 30, in thelower ends of tlie'straps 28 and 1 23a, and ibetweenhe. straps is pivoted a rearwardly extending beam, 31, having in-` termediate ,its length. a depending portion 32; The regar-portion ofthe beam- 31 is bent downwardly and carriesl an `earth engaging tool 33. Vlivoted at its lower end atA 34to the depending port-ion 32 of the beam 31,

and at its upper end'at 35 to the end of a lever 36,@is alink 37. The'lever 36 is .piv-

tor 39 securely fastened by bolts 40, 41 to the 'framebar 161, The lever 36 extends-for-v Y wardly and is'within convenientreach of the ope-ratorupon the tractorjand carries ia latch 42 ofI the Kusual-ty'e whichfoperates the usual 4spring .pressed cog adapted to en-l gage a notch 42-in the sector 39.` Dra'gbars 10o oted intermediateits length at 38 to a sec-v i' are pivotally connected at their forward ends to the frame bars 16 and 17 by links 43 which have inturned lower ends and outvtu-riied upper' ends extending through the `Also pivotally attached to the links 43 are rearwardly 'ekten'dingbars 47 which are up-V turned at their rear ends. A beam 49 cx tends over and between the disk gangs and on a downwardly extending rear port-ion carries an earth engaging tool 50. The beam 49 at a point in front of ythe disk gangs has diverging portions 51 and 52, which are pivoted intermediate their en'ds at 53 to the upturned portions ofthe bars 47 and 'eX- tend forwardly therefrom. The forward portion ofthe diverging member51 carries a lug or dog 54 adapted to engage one of a series of notches 55 ina plate 56 secured to the' frame bar 17 by bolts 57 and 58. A link 59 is pivoted at its upper end Yat 35 to the lever 36 and at its lower end at 60 to the forward end of the diverging member 52. The side portions ofV a Vyoke 61 are pi'vofed at 62 andY 63 to the frame bars 16 and 17 respectively and at tlieir lower ends to the bars 47 by means of bolts 64 and 65. A

link 66 'pivotally connects the upper enrl of the yoke 61 to the lower ends ot tire depending straps 28 and 28a.

The operation of the angling' device is as follows: Presuming the to be in transport position with the angling device in neutral position at which time the dog of the hand latch 47 is in the notch 42a in the sector 39, as shown in Figure 2, and the lug 54 on the member 51 at the same tiine'engaging Y the forward notch in the plate 56, as shown in Figure 1, by diseiigaging the latch 47 from the notch'421 'a'iid stroking the lever 36 downwardly the beam 31 willbe .raised by the link 37 and the rear end of the beam 49 will be lowered so the tool 50 will engage the ground.V At the time' the rear portion of the beam 49 is lowered the` diverging poi'- tions 51 and 52 will be raised andthe lug will be moved out of e'1i,fia-ge'ment lwith the forward notcl'i 55 in the plate 56., With the Vtool 50 engaging the ground and acting as an anchor and the barrow as a unit being moved. forwardly relative t'o the tool 5() by the draft means, such as a tractor 20, the disk gangs will be angled by reason of the beam 49 being connected to the links 43 through the bars 47 and the draft bars 45 also being connected t'o the links 43 and the disk gangs which are pivotedg ai; is, as before described. At the completion of this;

movement the various 'parts will assume the posean shown in Figare 5. when the disk gangs have -angled to the desired position beam 49 will be raised and the tool 50 lifted from engagement with the ground. The varous parts will then be securely held .in the positions shown in Figure 31. To reverse the action described and straighten the gangs the lever36 is stroked upwardly which -1 o0 will lower the be'a'm 31 allowing the too-i of) to .engage the ground and at the same time the portions 51 and 52 of the beam 49 vwill be loweredk disengaging the lug 54 from theV notch 55 and the rear vportion `of the beam 49 will be raised'. The beaml 31 by its engagement with the ground through the tool 33 will cause the straps 28a and 28 to' swing rearwardly which invturn, through the link 66, the yoke '61 and-the bars 47, will swing the links 43 forwardly v\`vl"ii'cli^, by reason of their connection with the disk gangs through the draft bars 45, will cause the disk gangs to be straightened, and when in the desired position the lever 36 is again returned to the neutral position and the beam 31 will be 'raised as will also the forward portion of the beam 49 and the lug'54 will again eng'a'ee 'one of the notches 55 andthe parts will he again locked in position.

vVlile l have chosen to'show my disk aug4 ing means attached to a. single action harr'ow it is tobe understood it is equally adapted for use Vwith a double action harrow in which, as is well known, a trailing set of disk gangs is used, and by connecting the rearward gangs to the angling means the rearward set of gangs will be adjusted simultaneously.with and in `the same'manner as the forward set.

What l claim is- 1. ln a disk harrow, the comljiination of a frame,r a plurality Aof disk gangs connected. with the frame and adapted to be adjusted angularly relative to the line ofa'dvancc` means connected with the frame Vand with the gangs and movable into engagement with the ground for adjustingthe angular position of the gangs.

2. In a disk barrow7 the combination of :i frame, a plurality vof disk gangs connected .with the frame and adapted to be usted air gularly relative to the line 'of advance, means connected with the Vframe and with the gangs and movable into engagement with the Yground for straightening Vthe gangs when they are in angled'positi'on;

ln a disk` liarrow, the kcon'ibination 'of a freine, a plurality of disk gangs connected with the frame and adapted to be adjusted Y angiilarly relative to the line "of advance..v

means connected with the'frame and with the gangs and movable intoy engagement.

with the ground for moving the gangs away fram their straight position.

4. In a disk harrow, the combination ot a frame, disk gangs connected with the trame and adapted to be adjusted angularly relative to theline of advance, mechanism carried by the trame for adjusting the gangs angularly andr for straightening the gangs when they are in angled position, said mechanism including oppositely movable ground engaging means, actuating connections between the ground engaging means and the gangs, and means for optionally moving the ground engaging means into engagement with the ground.

5. In a disk harrow, the combination of a trame, a plurality of disk gangs connected with the traine, and adapted to be adjusted angularly relative to vthe line ot' advance, means connected with the frame and with the disks and movable into engagement with when they are in angled position, and lock-.

ing means actuated by movement of said ground engaging means for holding the gangs in adjusted position.

7. In a disk barrow, the combination of a trame, disk gangs connected with theframe and adapted to beadjusted angularly relative to the line of advance, mechanism carried by the frame for adjusting the gangs angularly and for straightening the gangs when they are in angled position, said mechanism including oppositely movable ground engaging means, actuating; connections between the ground engaging means and the gangs, and means for optionally moving the ffmc-und engaging means into engagement with the ground and locking ymeans con'- trolled' by movement of said groundengaginfr means ifor holding the gangs in adjusted gaging means and the gangs operable by the engagement of said ground engaging meansY with the ground to adjust the gangs angularly.

9. In a disk barrow, the combination of a to swing in the frame when in 'engagement 8. In a disk barrow, the combination of a frame, disk gangs connected with the frame and adapted to be adjusted angularly relative to the lineof advance, a plurc ity of ground engaging means carried bythe frame and optionally movable into engagement and with the gangs for adjusting the position of the gangs angularly, and locking means or'lholdmg the'gangs `1n adjusted position lwhen said devlces are out of operative position. l

ll. In a disk harrow, the combination of a frame, diskV gangs connected with the trame and adapted to be adjusted angulai-ly relative to the line of advance, ground engaging means optionally movableinto engagement with the ground, said means being mounted to swing in the'frame when in engagement with the ground, and connections between the ground engaging means and the gangs actuated by fthe swinging of the groundengaging means.l i l 12. In a disk harrow, the combination ot a frame, disk gangs connected with the frame and adapted to be adjusted angularly relative to the line of advance, ground engaging means optionally movable into engagement with the ground, said .means being mounted to swing inv the iframe when in engagement with the ground, and connections between the ground engaging means andthe gangs actuated by the swinging of the ground engaging'means, and locking means for holdingfthe gangs. in adjusted position. .v .i

A13. In adisk harrow, the .combination ol a frame, diskv gangs connected with the frame and adapted to be adjusted angularly relative to the line of advance,` oppositely movable ground engaging means mounted with the ground, means for optionally mov-- ing said ground'V engaging" means into enies lll)

gagement with the ground, and actuating lao y ingy means operable by movement ot both of said ground engaging means out of" operative position tor holding the gangs in adjusted position.

l5. En a disk barrow, the combination oitV a trame, disk gangs connected with the trame, and adapted to be adjusted angularly relative to the line ot adva1ice,"two `Vuid engaging means connected with the 'frame and optionaliy movable into engage ment with the ground, either of said ground engagingl means, when in engagement with the ground, reversing the action of the other, and actuating connections between the ground engaging means and the gangs.

16. lin a disk harrow, the combination of a frame, disk gangs connected with the trame, and adapted to be adjusted angularly relative to the line ot advance, two ground engaging means connected with the trame and optionally movable into engagement with the ground, either'ot said ground engaging means, when in `engagement with the ground, reversing the action ot the other, and actuatingconnections between the ground engaging'means and the gangs, and locking means controlled by movement of said ground engaging means Vfor holding the gangs in adjusted position.

M'. In a disk hari ow, the combination of a frame, disk gangs connected with the frame and adapted to be adjusted angularly relative to the line of advance, means connected with the trame and with the gangs, and

adapted to be moved into engagementy with the ground, and means, under control of the operator, Jfor moving said means intofor out ot engagement with the ground. l 18. Ina disk harrow, the combinationof a frame, disk gangs connected with the trame and adapted to be adjusted angularly relative to the line ot advance, ground engaging means movable simultaneously in opposite directions and mounted tov swing Hin the frame when in engagement with the ground, means .tor optionally moving one or the other ot'said lground engaging means into engagement with the ground, and actuating connections between the ground engaging means and the gangs. l

1'9. ln a disk harrow, the combination of a trame, disk gangs connected with the frame and adapted to be adjusted angularly relative to the line ot advance, gang adjusting mechanism carried on the frame comprising vertically movable ground engaging means connected together to move simultaneously in opposite directions, means tor optionally j alternatively moving the ground engaging means into engagement with the ground, and connections between the ground Vengaging means and the gangs actuated by one or the other ot the ground engaging means while in engagement with the ground to move said gangs in one direction or the other.

20. A gang shifting mechanism 'tor disk narrows comprising an ai'ichoring member movable into or out ot' engagement with the ground and means oper ated byl said anchon ing member `to shift the gang'by power derived from the travel ot the harrow.

91. In a disk harrow, amain trame, shiittable disks and an anchoring member movable into or out oi engagement with the ground and operative by the movement ot the harrow to change the angle of the disks rela-V tive to the line of draft.

22. in a disk narrow, a main trame, shiftable disks and anchoring members movable alternatively into or out of engagement with the ground and operative by the forwardv movement of the barrow to respectively shift thevdisks from transport to working position or from working position to transport position. j K

23. In a disk narrow, a main frame, shittable disks and an anchoring member movable into 'or out of engagement with the ground and operative by the movement of the barrow to change the angle ot the disks relative to the line foi: draft, and means controlled by movement of said anchoring member tor holding the disks in adjusted position. f 2li. In a disk barrow, a main frame, shiftable disks and anchoring members movable alternatively into or out of engagement with the ground, and operative, by the forward movement of the barrow to respectively shift the disks from transport to working position y said anchoring members out of operative pon sition for holding the disks in adjusted position. Y

wrLLmM L. PAUL. 

